I just listened to the unofficial "Tupac Duets" mixtape, and I gotta say it was worth downloading. Theres a decents amount of cool songs and a good variety of featured guests, a lot of the music reflects back on Pac's life and uses quotes from the "Tupac: Thug Angel" documentry on his life. I'm not quite sure how old it is, but its good stuff and its definatley worth a listen, has anybody heard it?